diff --git a/java-multithread/src/main/java/com/brianway/learning/java/multithread/communication/example7/producer.java b/java-multithread/src/main/java/com/brianway/learning/java/multithread/communication/example7/Producer.java
similarity index 100%
rename from java-multithread/src/main/java/com/brianway/learning/java/multithread/communication/example7/producer.java
rename to java-multithread/src/main/java/com/brianway/learning/java/multithread/communication/example7/Producer.java
diff --git a/java-multithread/src/main/java/com/brianway/learning/java/multithread/lock/example1/Run1_UseConditionWaitNotify.java b/java-multithread/src/main/java/com/brianway/learning/java/multithread/lock/example1/Run1_UseConditionWaitNotify.java
index f1fd746..dd8e16e 100644
--- a/java-multithread/src/main/java/com/brianway/learning/java/multithread/lock/example1/Run1_UseConditionWaitNotify.java
+++ b/java-multithread/src/main/java/com/brianway/learning/java/multithread/lock/example1/Run1_UseConditionWaitNotify.java
@@ -12,6 +12,7 @@
 public class Run1_UseConditionWaitNotify {
 public static void main(String[] args) {
 ServiceB service = new ServiceB();
+
 ThreadB b = new ThreadB(service);
 b.start();
 }
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